[L0veless]

Monday I will have to call keystone on this,
twice I took my 2016 in for warranty that the galley grey tank would "leak" only when filled. I rarely check my gages because I would drain every2-3 days when using. one day DW told me the sink isn't draining, I went out to drain it, there was a small drip maybe about 1/2 cup total had leaked under the valve. I drained and no more leak/drip. couple weeks later same scenario. finally get home to take into the shop and they say no leak everything ok.
took back out and same scenario took back 2 weeks ago and was told no leak I explained for the 4th time when it leaks, only when it is completely full and the sink stops draining. they told me that's natural because of the way the tank is constructed. the fill pipe "floats" where it connects to the tank allowing it to slide up and down its not a fixed/solid connection.